/**
 * Returns random value from the min number up to (but not including) the max number.
 */
export declare function randomBetween(min: number, max: number): number;
/**
 * Returns random integer from 0 up to (but not including) the max number.
 */
export declare function randomInt(maxInt: number): number;
/**
 * Returns random integer from the min number up to (but not including) the max number.
 */
export declare function randomIntBetween(minInt: number, maxInt: number): number;
/**
 * Returns one of array elements randomly.
 * @param array
 */
export declare function getRandom<T>(array: T[]): T;
/**
 * Returns n or -n randomly. (n = provided number)
 * @param {number} n - any number
 */
export declare function randomSign(n: number): number;
/**
 * Returns and removes one array element randomly.
 * @param array
 */
export declare function popRandom<T>(array: T[]): T;